A great way to get your website popular is to comment on blogs. For this to work, you have to leave comments on blogs that are related to your website, and the comments you leave have to be insightful.

If people feel that your comments are detailed and insightful, not only will they keep reading your comments, they’ll also head over to your website (when you leave a comment on a blog, you can typically leave your website URL).

Although this tactic seems simple, it is very effective. Just look at Mashable (http://mashable.com/). Pete Cashmore made that blog popular by commenting on competing blogs like TechCrunch when he first launched it. He literally left hundreds of comments, and now he has one of the most popular websites on the Internet.